Martin C, Prades J M, Bertholon P, Merzougui N, Durand M
CHU Bellevue, Service d'O.R.L., de Chirurgie Cervico-Faciale et Plastique, Saint-Etienne, France.
Rev Laryngol Otol Rhinol (Bord). 1996;117(3):157-63.
Intrapetrous cholesteatomas correspond to lesions extending beyond the classical limits of impairment at the level of the middle ear. This paper analyzes 31 cases of which only 2 are definitely primary, the other 29 probably being secondary. In 5 cases, a cholesteatoma had been previously removed by an open or semi-open technique. Such cholesteatomas, that are found at all ages (from 12 to 74), affect both sexes equally. They are easy to diagnose when the symptomatology combines a history of otitis, damage to facial motoricity, mixed deafness or anacusis and a tympanic aspect of cholesteatoma. They are much more difficult to diagnose in the absence of any facial deficit, of major deafness, and even more so if the tympanum is closed. CT-scanning and MRI now enable a precise study of the nature of the complaint and its extension. Surgical treatment requires full mastery of all the techniques of otoneurosurgery, the procedure depending very much upon the seat and extent of the intrapetrous cholesteatoma.
岩骨内胆脂瘤是指病变超出中耳层面典型损伤范围的情况。本文分析了31例病例，其中仅2例为明确的原发性病例，其他29例可能为继发性病例。5例患者此前曾通过开放式或半开放式技术切除过胆脂瘤。这类胆脂瘤可见于各年龄段（12岁至74岁），男女发病率相同。当症状表现为中耳炎病史、面部运动功能受损、混合性耳聋或全聋以及胆脂瘤的鼓膜表现时，很容易诊断。在没有任何面部功能缺损、严重耳聋的情况下，尤其是鼓膜完整时，诊断要困难得多。CT扫描和MRI现在能够精确研究病变的性质及其范围。手术治疗需要全面掌握耳神经外科的所有技术，手术方式在很大程度上取决于岩骨内胆脂瘤的位置和范围。
